Redding Reloading Full Length Die Set 223 Rem The full length resizing die contains a decapping rod assembly with a neck expander (size button). The seating die includes bullet guide, built-in crimp ring and seating plug. Hand polished for smooth, flawless functioning, inspected, and are ultra sonically cleaned before packaging. The die box is a handy cartridge loading block and storage package. Inside is a spare decapping pin, hex wrench, and a place for your shellholder. Uses the industry standard 7/8-14 threaded bodies.